Is CVE-2026-27711 actively exploited?

No active exploitation of CVE-2026-27711 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27711 be exploited remotely?

No. CVE-2026-27711 requires local access to exploit.

What is the CVSS score of CVE-2026-27711?

CVE-2026-27711 has a CVSS score of 6.6 (MEDIUM) and an EPSS exploitation probability of 0.02%.

HOME VULNERABILITIESCVE-2026-27711

MEDIUM

CVE-2026-27711

CWE-125Published: February 26, 2026· Updated: Feb 27, 2026

6.6

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:3.1th

Official Description

NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, a memory corruption vulnerability in NanaZip’s UFS parser allows a crafted `.ufs/.ufs2/.img` file to trigger out-of-bounds memory access during archive open/listing. The bug is reachable via normal user file-open flow and can cause process crash, hang, and potentially exploitable heap corruption. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.

NVD Source

Technical Analysis

CVE-2026-27711 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 6.6.